The first offers are coming in. That made me wonder how detailed I want to publish sketches from architects, bid lists from general contractors, etc. here in the forum.
I realize that the more details, the better the help can be. But the forum is public and
- everyone might then possibly see my parcel and know who I am,
- architectural plans and bid drawings are probably subject to copyright,
I do not speak without reason of the "usual suspects" and of their house models as the "GDB bottle": given the monotony of variants, there is no question of originality, at maximum optimization every circle simply becomes a square. From whom might you have received offers? – I would be very surprised if it were from the usual suspects, because serial building does not work in the quantity of "1 semi-detached house"; they would already have to have a project in your neighborhood, from which they merely place a "bonus specimen" (varied within the usual narrow option frame) on your plot.
You have already told here "just barely enough" about your plot and accordingly, inevitably vaguely, already received the maximum amount of as accurate advice as possible.
The paths alone probably won’t do it, so somehow something must be combined. Here the question: What would be the advice? Build minimally smaller and do a lot yourself? Catalog house and own work? Architect and build smaller, only shell construction, rest own work? Or or or? Gladly with a short reason.
Building minimally smaller would already break the said narrow option frame; that is neither logistically feasible nor would there be any small leftover square meter to drop anywhere. Own work is already planned: above the ground floor, the buyers cover the raw ceilings "on their own". Doing the lightweight walls yourself as well would still be doable. Joint planner with the neighbors on both halves and joint (shell construction) general contractor, I have never recommended anything else.
Some semi-detached houses from the catalog don’t fit because they are too long (that is, each half too wide).
No, I already said: they fit. If you have found non-fitting ones, then probably from general contractors who only have semi-detached house designs in the theoretical catalog for completeness (mostly rarely or never built).
By the way, the Goalkeeper thread is not only a horror story about the stupidity of mayors, neighbors, and new neighbors, but also contains a quite useful house design for your situation:
